Certificate error when using tech.gusavila92.websocketclient.WebSocketClient

I am creating an Android App which I want to connect to my server running secure websockets (wss). My code to connect is as below:

private void createWebSocketClient() {      URI uri;        try {          // Connect to local host          uri = new URI("wss://mysocketsdomain:8080/ws");      }        catch (URISyntaxException e) {          Log.d("Connection", "I am not even connecting");          e.printStackTrace();          return;      }        webSocketClient = new WebSocketClient(uri) {          @Override          public void onOpen() {              Log.i("WebSocket", "Session is starting");              webSocketClient.send("Hello World!");          }            @Override          public void onTextReceived(String s) {              Log.i("WebSocket", "Message received");              final String message = s;              runOnUiThread(new Runnable() {                  @Override                  public void run() {                      try{                          //TextView textView = findViewById(R.id.mainText);                          //textView.setText(message);                      } catch (Exception e){                          e.printStackTrace();                      }                  }              });          }            @Override          public void onBinaryReceived(byte[] data) {          }            @Override          public void onPingReceived(byte[] data) {          }              @Override          public void onPongReceived(byte[] data) {          }          @Override          public void onException(Exception e) {              System.out.println(e.getMessage());          }          @Override          public void onCloseReceived() {              Log.i("WebSocket", "Closed ");              System.out.println("onCloseReceived");          }      };      webSocketClient.setConnectTimeout(10000);      webSocketClient.setReadTimeout(60000);      webSocketClient.enableAutomaticReconnection(5000);      webSocketClient.connect();  }  

I am getting the error below:

java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.  

The connection works fine if I visit the web front end from a browser and I can see that the certificate is valid from the padlock symbol. Also, the frontend web app that I developed using Svelte in JavaScript works fine.

Can anyone advise what I need to do? I am reading a lot of confusing information online. Some things suggest that I need to create a trusted certificate store in the Android app. Another thing that I saw suggested it is a problem with the server certificate chain. I set the server to use the certificate file containing the chain, but the error still happens. I am not sure if it would be the server when it works for the JavaScript app and the web front end.

https://stackoverflow.com/questions/66828486/certificate-error-when-using-tech-gusavila92-websocketclient-websocketclient March 27, 2021 at 02:05PM